225111132 has 36 divisors (see below), whose sum is σ = 576241120. Its totient is φ = 74086272.

The previous prime is 225111121. The next prime is 225111151. The reversal of 225111132 is 231111522.

225111132 is a `hidden beast` number, since 22 + 511 + 1 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36733 + ... + 42420.

Almost surely, 2^225111132 is an apocalyptic number.

It is an amenable number.

225111132 is an abundant number, since it is smaller than the sum of its proper divisors (351129988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225111132 is a wasteful number, since it uses less digits than its factorization.

225111132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79242 (or 79237 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 225111132 is about 15003.7039426936. The cubic root of 225111132 is about 608.3203204489.

Adding to 225111132 its reverse (231111522), we get a palindrome (456222654).

The spelling of 225111132 in words is "two hundred twenty-five million, one hundred eleven thousand, one hundred thirty-two".